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 * modification, are permitted provided that the following conditions are
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 * notice, this list of conditions and the following disclaimer.
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 * copyright notice, this list of conditions and the following disclaimer
 * in the documentation and/or other materials provided with the
 * distribution.
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 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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#ifndef V8NPUtils_h
#define V8NPUtils_h

#include <bindings/npruntime.h>
#include <v8.h>

namespace blink {

// Convert a V8 Value of any type (string, bool, object, etc) to a NPVariant.
void convertV8ObjectToNPVariant(v8::Isolate*, v8::Local<v8::Value>, NPObject*, NPVariant*);

// Convert a NPVariant (string, bool, object, etc) back to a V8 Value. The owner object is the NPObject which relates to the
// object, if the object is an Object. The created NPObject will be tied to the lifetime of the owner.
v8::Handle<v8::Value> convertNPVariantToV8Object(v8::Isolate*, const NPVariant*, NPObject*);

// Helper function to create an NPN String Identifier from a v8 string.
NPIdentifier getStringIdentifier(v8::Handle<v8::String>);

// The ExceptionHandler will be notified of any exceptions thrown while
// operating on a NPObject.
typedef void (*ExceptionHandler)(void* data, const NPUTF8* message);
void pushExceptionHandler(ExceptionHandler, void* data);
void popExceptionHandler();

// Upon destruction, an ExceptionCatcher will pass a caught exception to the
// current ExceptionHandler.
class ExceptionCatcher {
public:
    ExceptionCatcher();
    ~ExceptionCatcher();
private:
    v8::TryCatch m_tryCatch;
};

} // namespace blink

#endif // V8NPUtils_h